I've seen the animated versions of them and they are drawn using the same proportions as the kids in the show and not the adults.

Matt said that it would be too weird if they were in one of the episodes.

I don't really like the Pip episode either.
It's just one of those episode that obviously goes off the main idea of the show.

One of my favourites is "Lame. Not cool! Totally lame!
Another one my favourites is a Persian quote from the episode called "Osama Bin Laden Has Farty Pants". The quote is "Vovayloh! Koshtan Keyvonroh!" Which means, "Oh my God! They killed Keyvon! (Kenny like character).

Did anyone mention the Crab People chant? I don't know if you can consider that a song. Meh!

I'm a Stan. Nothing special. Pretty average. That's what I'm guessing being Stan means. Woooooooooooh! Go average people! Go Stan!